Régis Crelier
8cf9ef22c4
This reverts commit db15f5d73b.
Dart2js and Kernel tests are comparing text that has changed because of
the core lib change.
Change-Id: I1d33716a3d6e6a077aa1f1a9ad7cc37825d31fa6
Reviewed-on: https://dart-review.googlesource.com/9082
Reviewed-by: Siva Chandra <sivachandra@google.com>
82 lines
2.8 KiB
Dart
82 lines
2.8 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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int _getHash(obj) native "Object_getHash";
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int _setHash(obj, hash) native "Object_setHash";
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@patch
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class Object {
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// The VM has its own implementation of equals.
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@patch
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bool operator ==(other) native "Object_equals";
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// Helpers used to implement hashCode. If a hashCode is used, we remember it
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// in a weak table in the VM (32 bit) or in the header of the object (64
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// bit). A new hashCode value is calculated using a random number generator.
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static final _hashCodeRnd = new Random();
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static int _objectHashCode(obj) {
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var result = _getHash(obj);
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if (result == 0) {
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// We want the hash to be a Smi value greater than 0.
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result = _hashCodeRnd.nextInt(0x40000000);
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do {
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result = _hashCodeRnd.nextInt(0x40000000);
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} while (result == 0);
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_setHash(obj, result);
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}
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return result;
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}
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@patch
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int get hashCode => _objectHashCode(this);
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int get _identityHashCode => _objectHashCode(this);
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@patch
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String toString() native "Object_toString";
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// A statically dispatched version of Object.toString.
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static String _toString(obj) native "Object_toString";
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_noSuchMethod(bool isMethod, String memberName, int type, List arguments,
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Map<String, dynamic> namedArguments) native "Object_noSuchMethod";
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@patch
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dynamic noSuchMethod(Invocation invocation) {
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return _noSuchMethod(
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invocation.isMethod,
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internal.Symbol.getName(invocation.memberName),
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invocation._type,
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invocation.positionalArguments,
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_symbolMapToStringMap(invocation.namedArguments));
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}
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@patch
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Type get runtimeType native "Object_runtimeType";
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static bool _haveSameRuntimeType(a, b) native "Object_haveSameRuntimeType";
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// Call this function instead of inlining instanceof, thus collecting
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// type feedback and reducing code size of unoptimized code.
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bool _instanceOf(instantiatorTypeArguments, functionTypeArguments, type)
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native "Object_instanceOf";
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// Group of functions for implementing fast simple instance of.
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bool _simpleInstanceOf(type) native "Object_simpleInstanceOf";
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bool _simpleInstanceOfTrue(type) => true;
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bool _simpleInstanceOfFalse(type) => false;
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// Call this function instead of inlining 'as', thus collecting type
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// feedback. Returns receiver.
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_as(instantiatorTypeArguments, functionTypeArguments, type)
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native "Object_as";
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static _symbolMapToStringMap(Map<Symbol, dynamic> map) {
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var result = new Map<String, dynamic>();
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map.forEach((Symbol key, value) {
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result[internal.Symbol.getName(key)] = value;
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});
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return result;
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}
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}
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